The Billings method of Natural Family Planning :
Billings, Evelyn.
The Billings method of Natural Family Planning : controlling fertility without drugs or devices / Evelyn Billings & Ann Westmore. - 1st American ed. - New York : Random House, c1980. - 254 p. : ill. ; 22 cm.
Reprint. Originally published: Richmond, Victoria, Australia : A. O'Donovan, 1980.
Includes Bibliography: p. [230]-237 and index.
0722515774
81050275
613.9/434
The Billings method of Natural Family Planning : controlling fertility without drugs or devices / Evelyn Billings & Ann Westmore. - 1st American ed. - New York : Random House, c1980. - 254 p. : ill. ; 22 cm.
Reprint. Originally published: Richmond, Victoria, Australia : A. O'Donovan, 1980.
Includes Bibliography: p. [230]-237 and index.
0722515774
81050275
613.9/434